surveillance

2 ENTRIES FOUND:

sur·veil·lance

noun \sər-ˈvā-lən(t)s also -ˈvāl-yən(t)s or -ˈvā-ən(t)s\

: the act of carefully watching someone or something especially in order to prevent or detect a crime

Full Definition of SURVEILLANCE

:  close watch kept over someone or something (as by a detective); also :  supervision

Examples of SURVEILLANCE

  1. government surveillance of suspected terrorists
  2. The bank robbery was recorded by surveillance video cameras.

Origin of SURVEILLANCE

French, from surveiller to watch over, from sur- + veiller to watch, from Old French veillier, from Latin vigilare, from vigil watchful — more at vigil
First Known Use: 1802

sur·veil·lance

noun \sər-ˈvā-lən(t)s also -ˈvāl-yən(t)s or -ˈvā-ən(t)s\   (Medical Dictionary)

Medical Definition of SURVEILLANCE

: close and continuous observation or testing <serological surveillance>—see immunological surveillance

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